106 



A NEW FLOBA OF 



flows sluggishly with many windings through the level country 

 past Bradbury and Darlington to Blackwell. Still further east 

 there is a stream similar in character but shorter and smaller, 

 which from Sedgefield runs south-eastward to Norton and Eil- 

 lingham. Between Hartlepool and Sedgefield the level scarcely 

 anywhere exceeds 100 feet, and southward it falls still lower. 

 The streams and ponds of this level low-lying tract furnish the 

 best stations for water-plants which there are in the two counties, 

 as for instance, Morden Carrs, through which the railway runs 

 between Bradbury and Aycliffe Stations, and the streams and 

 ditches about ]!Torton and Billingham. Prom the Tees mouth at 

 Seaton Carew northward to Hartlepool there is very little cliff 

 along the shore, but from this latter point northward the Mag- 

 nesian Limestone borders it with fine cliffs in several places, 

 especially at the Black Hall Eocks, and from Horden Dene north- 

 ward the rocky wall is carried forward almost without interrup- 

 tion. We have regarded the denes of the Magnesian Limestone 

 from Hawthorn Dene southward as comprised in this drainage 

 tract. The most considerable of these is Castle Eden Dene, a 

 thickly-wooded picturesque craggy ravine which extends from 

 the shore midway between Hartlepool and Sunderland for a dis- 

 tance of five miles due west into the heart of the Magnesian 

 Limestone range. The hills round the upper part are from 400 

 to 500 feet above sea-level. Hesleden Dene, a similar glen a 

 short distance to the south, is about the same length but nar- 

 rower. Hawthorn and Horden Denes, nearer Sunderland, are 

 both much smaller and shorter. The area of the district is about 

 300 square miles. 



ALTITUDES. 



FEET. 



Higlifield, above Grasshill 2322* 



FendrichHill 2284* 



Monk's Moor, above Mid- 



dleton 1954* 



Raven Seat 1927* 



James's Hill, Newbiggin 2215* 



Outberiy Plain 2142* 



Widdy Bank Fell 1660 



Widdy Bank Farm-house 1286 

 Caldron Snout 1430-1 530 



FEET. 



Langdon Bridge 1255 



High Force Fall 942-1005 



High Force Inn 1050 



"Winch Bridge 856* 



Middleton Bridge over Tees 729* 

 Middleton Bridge over 



Middleton Beck 765 



Junction of Middleton and 

 Hamsterley with Bar- 

 nard Castle Road 1025 



